Effects of discrete heat source location on heat transfer and entropy generation of nanofluid in an open inclined L-shaped cavity

• Published in: International journal of numerical methods for heat & fluid flow 2019-06, Vol.29 (4), p.1363-1377
• Main Authors: Armaghani, Taher, Rashad, A.M., Vahidifar, Omid, Mishra, S.R., Chamkha, A.J.
• Format: Article
• Language: English
• Subjects: Chemical reactors; Convective flow; Cooling; Cooling systems; Differential equations; Ducts; Electronic components; Engineering; Entropy; Finite volume method; Fluids; Heat conductivity; Heat transfer; Inclination angle; Investigations; Magnetic fields; Nanofluids; Nanoparticles; Nuclear reactor components; Nuclear reactors; Organic chemistry; Partial differential equations; Reynolds number; Surveying; Temperature; Viscosity
• ISSN: 0961-5539; 1758-6585
• DOI: 10.1108/HFF-07-2018-0412

Purpose This paper aims to concentrate on the impacts of a discrete heat source location on heat transfer and entropy generation for a Ag-water nanofluid in an open inclined L-shaped cavity. Design/methodology/approach The governing partial differential equations for this study are computed by the finite volume method. Findings The results show that increasing the inclination angle leads to a rise in heat transfer. It is clear with the increase in the nanoparticles volume fraction that the thermal performance reduces, and it increases when the inclination angle increases. Originality/value Because of the continuous literature survey, the authors have not found a study that concentrates on the entropy generation in a wide variety of irregular ducts. Thus, in this paper, they present the analysis of entropy generation in an L-shaped duct experiencing a mixed convective flow with a nanofluid. The authors deal with this geometry because it is very useful in cooling systems of nuclear and chemical reactors and electronic components.